Blood testing apparatus



FIG. 1 is a right side, front perspective view of a blood testing apparatus illustrating an embodiment of our new design;

FIG. 2 is a left side, rear perspective view of FIG. 1 thereof;

FIG. 3 is a front view of FIG. 1 thereof;

FIG. 4 is a rear view of FIG. 1 thereof;

FIG. 5 is a bottom plan view of FIG. 1 thereof;

FIG. 6 is a top plan view of FIG. 1 thereof;

FIG. 7 is a right side view of FIG. 1 thereof; and,

FIG. 8 is a left side view of FIG. 1 thereof.

The broken lines in the drawing views illustrate portions of the blood testing apparatus that form no part of the claimed design. 

CLAIM The ornamental design for a blood testing apparatus, as shown and described. 